12586420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{743}}^1$

素因数の和:781

約数の個数: 72

約数和(自身を含む): 33247872

約数和(自身を除く): 20661452

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 121, 140, 154, 220, 242, 308, 385, 484, 605, 743, 770, 847, 1210, 1486, 1540, 1694, 2420, 2972, 3388, 3715, 4235, 5201, 7430, 8173, 8470, 10402, 14860, 16346, 16940, 20804, 26005, 32692, 40865, 52010, 57211, 81730, 89903, 104020, 114422, 163460, 179806, 228844, 286055, 359612, 449515, 572110, 629321, 899030, 1144220, 1258642, 1798060, 2517284, 3146605, 6293210, 12586420]

約数ペア:

[(1, 12586420), (2, 6293210), (4, 3146605), (5, 2517284), (7, 1798060), (10, 1258642), (11, 1144220), (14, 899030), (20, 629321), (22, 572110), (28, 449515), (35, 359612), (44, 286055), (55, 228844), (70, 179806), (77, 163460), (110, 114422), (121, 104020), (140, 89903), (154, 81730), (220, 57211), (242, 52010), (308, 40865), (385, 32692), (484, 26005), (605, 20804), (743, 16940), (770, 16346), (847, 14860), (1210, 10402), (1486, 8470), (1540, 8173), (1694, 7430), (2420, 5201), (2972, 4235), (3388, 3715)]